Sound pick-up device



March 7, 1933. P. E. G. JENSEN scum) PICK-UP DEVICE Filed Aug. 14, 1951 INVENTOR PAUL E.G- JENSEN 12 ATTORNEY PatentedlMar. 7, 1933 UNITED STATES PAUL E. G. JENSEN, OF GBA'NTWOOD, NEW JERSEY, .ASSIGNOR. '1'0 RADIO CORPORATION PATENT OFFICE OF AMERICA, A CORPORATION OF SOUND PICK-UP DEVICE 1 Application 111m August 14, 19:11. Serial n 15513945..

This invention relates to sound pick-up devices such as are used in the 'roduction of sound pictures and has for its ject the provision of an improved apparatus and method of operation whereby sound maybe readily picked up from any desired location.

While the present invention is of particular utility in the production of newsreels, it

will be apparent that it is .also useful in studios and other locations. Among the novel features involved are a microphone or similar sound pick-up device and a sound concentrator arranged to be adjusted readily topoint in any desired direction, means for finding-the range of the point at which sound origmates, and means for adjusting the sound concentrator with respectto the'microphone in accordance with the determined.

. range sothat the microphone is located at the focal point of the concentrator.

Among further objects of the invention are the provision of improved means for sighting the microphone and sound concentrator, for finding the. range of the point from which the sound originates, foradjusting the concentrator in accordance with-the determined range and generally the. provision of an improved pick-up device -which is readily assembled and may be readily adjustedin a manner to insure proper o'pera- -tion. under different conditions encountered in newsreelwork. a

' My-invention .will be better understood "the point where the-sound originates. By

from the following description when considered' in connection with the accompanying. drawing and its scope will be pointed out in the appended claims.

Re erring to the-drawing 4 pick-up device constructed in accordance with my invention. Y

Fig. 3 illustrates the mounting of the range finder vdevice on the 'sound concentrator;

The pick-up device is similar to prior devices of this character in that it includes a sound concentrator 10, a microphone 11, and a support 12 upon which the concentrator range finder may Fig. 1 is a fragmentary view of thesound it to the support 12 and at its upper end with a shaft 15 upon which the microphone and sound concentrator are supported through members 16 and 17.

Angular adjustment of the sound-concentra-to'r and microphone is' eflfected by means of the hand wheel 18. This adjustment is determined by sighting means including an opening or peep hole 19 in the sound con- 1 centrator and a sighting-member 20 mounted on top of the microphone Adjustment of the sound concentrator 10, with respect to the microphone 11, is effected by means of a knob 21. adjustment is made in accordance with the reading indicated b a range finder 22. The e of any suitable well known form mounted at one edge of the sound concentrator. It will be understood This knob is calibrated and the that the support 12 may form part of a tripod 715 or in any other suitable supportin means and that the leads 23 of the microp one are connected to a sound recorder through suitable amplifying means not shown).

wheel 18 is adjusted until the sighting means In the operation .of't e device the hand' 19 and 20. indicate that the microphone and sound concentrator are properly pointed at means of the range finder 22 the distance to the pointofsound origin is determined and the knob 21 is adjusted accordingly-so as to insure that the microphone is located at the focal point of the concentrator. 4 Angular adjustment about the vertical axis of the. s11 .port is of course efiected by loosening e thumb screw 14 and turning the member 13' about the upper end of the support 12; From the foregoing description it evident that the improved devlce is readlly set up and adjusted to operate under a wide va- 'riety of conditions.

Iclaim: 1. A sound pick-up device including a concentrator and a support" therefor, "a' microphone arranged within said concentrator to receive the concentrated sound, means mounted on said support for determining the distance between said device and the point of sound origin, and means for adjusting the spacing between said mircophone and said concentrator in accordance with said .dis-

' ing between said microphone and said concentrator in accordance with said distance.

3. A sound pick-up device'including a concentrator and a microphone arranged within eaaaee determining the, distance between said device and a point of sound origin, and means for adjusting the spacing between said microphone and said concentrator in accordance with said distance.

' PAUL E. G. JENSEN.

said concentrator to receive the concentrated sound, means including a peep hole in said concentrator and a-si hting member mounted on said microphone or aligning said microphone and concentrator, with the point of sound origin, means for determining distance between said device and said point, and means for adjusting the spacing between said microphone and said concentrator in accordance with said distance.

4. A sound pick-up device including a concentrator, a microphone arranged within said concentratortoreceivethe concentratedsound, a range finder mounted on saidconcentrator for determining distance between said device and the point of'sound origin, and means operable from the rear of said concentrator for adjusting the spacing between the said microphone and the said concentrator in accordance with said distance.

5. A sound pick-up device including aconcentrator, a microphone arranged within said concentrator to receive the concentrated sound, means for aligning said microphone and said concentrator with the point of sound or: and means operable from the rear of 7 sea concentrator for adjusting the spacing between said microphone and said concentrator.

6. A sound pick-up device including a concentrator, a microphone arranged within said concentrator to receive the concentrated sound, means for aligning said microphone and'said' concentrator with the point of sound origin, means operable from the rear of said concentrator for adjusting the spacing be-j tween said microphone and said concentrator,

and means for adjusting said microphone and said concentrator about a vertical ans.

7.. A sound pick-up device includin a concentrator, a microphone arranged wit said concentrator to receive the concentrated sound, means mounted in fixed relationship with said microphone and concentrator for 

